Heating attachment for lamps.



J. G. DREW. HEATING ATTACHMENT FOR LAMPS. APPLIOATION FILED NOV. 25, 1908.

916,424. Patented Mar. 30, 1909.

Wihwoaea s 55% UNITED STATES PATENT oFFrcE.

JAMES GLOYD DREW, OF DALLAS, TEXAS.

HEATING ATTACHMENT FOR LAMPS.

To all whom it may concern:

Be it known that I, JAMES OLoYD DREW, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented a new and useful I-Ieat ing Attachment for Lamps, of which the following is a specification.

The objects of the invention are, generally, the provision, in a merchantable for1n,'of a device of the above mentioned class, which shall be inexpensive to manufacture, facile in operation, and devoid of complicated parts specifically, the provision of a heating drum of novel and improved form; of novel means for mounting the heating drum upon the chimney of a lamp; of draft-regulating means for the drum, of novel and improved type; other and further objects being made manifest hereinafter as the description of the invention progresses.

The invention consists in the novel construction and arrangement of parts hereinafter described, delineated in the accompanying drawings, and particularly pointed out inthe appended claim, it being understood that divers changes in the form, proportions, size and minor details of the struc ture, may be made, without departing from the spirit or sacrificing any of the advanta es of the invention.

imilar numerals of reference are employed to denote corresponding parts throughout the several figures of the drawings.

In the accompanying drawings :Figure 1 shows my invention in perspective, mounted upon the top of a lamp-chimney of ordinary construction; Fig. 2 is a bottom plan of a portion of the inner surface of the top of a heating drum; Fig. 3 is a vertical longitudinal section, showing a portion of the heating drum, and designed to disclose the means whereby the drum is attached to the members which support it Fig. 4 is a vertical longitudinal section through the diameter of the heating drum.

In carrying out my invention, I provide a heating drum, denoted generally by the numeral 1, and double convex in form. The drum 1 comprises a top member 2 and a bottom member 3, each in its preferred form circular in outline. The periphery of the top member 2 and the bottom member 3 is outwardly flexed to form a flange 4, and this flange 4 is bent about and made to retain a peripheral strip 5, which spaces apart the Specification of Letters Patent.

Application filed November 25, 1908.

Patented March 30, 1909.

Serial No. 464,358.

members 2 and 3. A damper 7 is shown, taking the form of a strip mounted between the flanges 4, having its edges arranged to contact with the said flanges 1, and having a sliding movement about the periphery of the drum, between the said flanges. The ends of the damper 7 are radially and outwardly bent, brought into close relation and secured together by any suitable means, whereby an operating handle 8 is formed. The peripheral strip 5 is provided with openings 9 arranged in alinement with other openings 10 in the damper 7. The bottom member 3 is provided with a relatively large central openin 11, arranged to receive the top of a lamp-chimney of ordinary construction, such chimney being shown in the drawings, and denoted by the numeral 6. The center of the top member 2 is depressed, as shown at 12, and through the center of this depressed portion 12 passes an opening 13.

My invention may be mounted upon the top of a lamp-chimney in a variety of ways. The preferred method of mounting, however, is as follows The under surface of the portion 12 of the top member 2, carries drum supports, comprising a straight body portion 16, having its terminals rearwardly bent, as shown at 15. These rearwardly bent terminals 15 are carried downward and inward to form shoulders 17, the terminals of the shoulders being downwardly bent to form resilient prongs 18.

The drum supports may be variously attached to the top member 2. In practice, however, I prefer to strike tongues 14 from the depressed top 12, and to pass these tongues 14 about the drum supports in the manner shown in Fig. 3.

The prongs 18 are fashioned from resilient material, and are adapted to be inserted into chimneys of different sizes. The shoulders 17 serve to space the top member 2 apart from the top of the chimney 6, whereby the warm air rising through the chimney may be given opportunity to find its way out for circulation iri the drum 1. By means of the damper 7, the temperature of the drum 1 may be regulated, since, by moving the apertures 9 in alinement with the apertures 10, a portion of the heated air may be allowed to pass out of the drum 1. The peripheral edge of the depressed portion 12 serves as a place upon which a small tea-pot or like receptacle may be placed, to heat its contents,

heating a room, or to cook a ight meal.

the aperture 13 permitting the heated air to rise from the chimney 6 and come into contact with the bottom of the pot.

I regard it as of im ortance that the device is supported from t e lower surface of the top member 2, since, by this construction, the center of gravity of the device is brought down to as low a point as possible.

It is a well known fact that but small ortion of the oil consumed by ordinary amps actually goes to furnish light, the major portion being dissipated in the form of heat, and my invention provides a simple and inexpensive means whereby the heat generated by a lamp may be em loyed to aid in Having thus described my invention, what I claim as new, and desire to protect, by Letters Patent, is

A heating drum comprising a bottom 1 member and a top member each convexing from the other, the bottom member being apertured to receive a lamp chimney, and the top member being provided on its under surface with resilient chimney-engaging prongs; a peripheral strip uniting the top and bottom members within their periphery and being provided with a draft aperture; a circular damper arranged to slide upon the peripheral strip between the top and bottom members and having an aperture arranged to register with the draft aperture in the strip.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

JAMES CLOYD DREW Witnesses:

J. D. FOURAKER, E. P. BRYAN. 

